chore: initial project scaffold with admin web, backend, desktop client, and deployment setup

Add monorepo structure for NexaVPN WireGuard control plane including:
- .gitignore for node_modules, build artifacts, and environment files
- README with project overview, monorepo layout, and quick start guide
- Admin web UI with React, Vite, TypeScript, and nginx reverse proxy
- API client with type definitions for users, devices, policies, gateways, and audit logs
- Admin pages for dashboard, users, devices, policies, g

admin-web/src/components/Table.tsx

@@ -0,0 +1,37 @@
+import { PropsWithChildren, ReactNode } from "react";
+
+type Column = {
+  key: string;
+  label: string;
+};
+
+type TableProps<T> = {
+  columns: Column[];
+  rows: T[];
+  renderCell: (row: T, column: Column) => ReactNode;
+};
+
+export function Table<T>({ columns, rows, renderCell }: PropsWithChildren<TableProps<T>>) {
+  return (
+    <div className="table-wrap">
+      <table className="table">
+        <thead>
+          <tr>
+            {columns.map((column) => (
+              <th key={column.key}>{column.label}</th>
+            ))}
+          </tr>
+        </thead>
+        <tbody>
+          {rows.map((row, index) => (
+            <tr key={index}>
+              {columns.map((column) => (
+                <td key={column.key}>{renderCell(row, column)}</td>
+              ))}
+            </tr>
+          ))}
+        </tbody>
+      </table>
+    </div>
+  );
+}